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  • Title: Predictive Value of Delphian Lymph Node Metastasis in the Thyroid Cancer.
    Author: Kim DH, Kim SW, Hwang SH.
    Journal: Laryngoscope; 2021 Sep; 131(9):1990-1996. PubMed ID: 33493364.
    Abstract:
    OBJECTIVE/HYPOTHESIS: To evaluate the diagnostic accuracy of Delphian lymph node (DLN) metastasis for the prediction of central lymph node (CLN) metastasis and lateral lymph node (LLN) metastasis. METHODS: Two authors independently reviewed the six databases (Cochrane database, Embase, Google Scholar, PubMed, SCOPUS, and Web of Science). Four parameters were extracted from each study: true positive, true negative, false positive, and false negative. The quality of the methodology was evaluated using the Quality Assessment of Diagnostic Accuracy Studies ver. 2 tool. RESULTS: The diagnostic odds ratio of DLN in CLN metastasis was 8.859 (95% confidence interval [CI], 4.419; 16.578). The area under the summary receiver operating characteristic curve was 0.748. The diagnostic odds ratio of DLN in LLN metastasis was 7.61 (95% CI, 4.48; 12.94). The area under the summary receiver operating characteristic curve was 0.837. DLN metastasis was moderately predictive of CLN metastasis (sensitivity = 32%, specificity = 95%), LLN metastasis (sensitivity = 52%, specificity = 89%), and contralateral CLN metastasis (sensitivity = 46%, specificity = 85%). DLN metastasis had statistically significant correlation with specific clinicopathological characteristics, including younger age (< 45 years old), bilaterality, capsule invasion, extrathyroidal extension, lymphovascular invasion, male sex, multifocality, and tumor size (> 1 cm). CONCLUSIONS: The higher specificities of DLN pathology may help predict central and lateral compartment involvement in patients with thyroid cancer. LEVEL OF EVIDENCE: NA Laryngoscope, 131:1990-1996, 2021.
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